Automatic-fire-alarm attachment.



M. D. MONTECINO.

AUTOMATIC FIRE ALARM ATTACHMENT. APPLICATION FILED JULY 29. I9I6.

1,277,633. Patented Sept. 3,1518.

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AUTOMAHC FIRE ALARM ATTACHMENT.

APPLICATION mm JULY 29. 1916.

1,277,633. V I PatentedSept. 3,1918.

Jnven tom 44. Marzfeazkw M. D. MONTECINO;

AUTOMATIC FIRE ALARM ATTACHMENT.

APPLICATION mm JULY 29.1916- 1 ,277,633. Patented Sept. *3, 1918.

3 SHEETS SHEET 3- JAZZ Mowfa'rza NITED STATES PATENT ormon.

MORRIS DENIS MONTECINO, OF SMOKE BEND, LOUISIANA.

AUTOMATIC-FIRE-ALARM ATTACHMENT.

Application filed July 29, 1916. Serial No. 112,077.

To all whom it may concern:

Be it known that I, Monnrs D. MoN'rn- GINO, a citizen of the UnitedStates, residing at Smoke Bend, in the parish of Ascension and State ofLouisiana, have invented certain new and useful Improvements inAutomatic Fire Alarm Attachments, of which the following is aspecification, reference being had therein to the accompanying drawing.

This invention relates to an automatic electric fire alarm and has forits object theproduction of a simple and efiicient means for closing anelectric circuit after the temperature of the atmosphere surrounding thecircuit closing device has reached a predetermined degree.

Fig. 2 is a side elevation of the structure shown in Fig. 1.

Fig. 3 is a rear elevation of the structure shown in Fig. 1.

Fig. 4 is a section taken on line 44 of Fig. 1.

Fig. '5 is a section taken on line 55 of Fig. 4, looking in thedirection of the arrow. Fig. 6 is a section taken on line 55 of Fig. 1',looking in the opposite direction from the arrow.

4 Fig. 4E.

Fig. 7 is a section taken on line 77 of 5 Fig. 8 is an enlarged sectiontaken on line ss of Fig. 1.

Fig. 9 is a section taken on line 99 of Fig. 5.

Fig. 10 is a detail perspective of the contact block supported withinthe circuit closing casing.

Fig. 11 is a side elevation of the mechanism for closing the circuit forsounding a signal.

Fig. 12 is a detail perspective of the finger for closing the signalsounding circuit.

By referring to the drawings, it will be seen that 1 designates theouter casing of the indicator which is provided with a front cover plate2. This front cover plate 2 is provided with a glass face 3 and anindicating face 4 is placed in the rear of the glass face 3. Anindicating hand 5 is car-. ried by a shaft 6 which shaft 6 is supportedwithin the casing upon the dial plate or indicating plate 4 asillustrated in Fig. 4t of the drawings and also passes through thesupporting plate 7 ofthe bracket 8. The shaft 6 is provided with anenlarged portion 9 which enlarged portion 9 engages a thermostaticmember 10, the thermostatic member 10 being in turn connected at itsouter endto a blndlng block 11. This thermobracket 8 as clearlyillustrated in Figs. 41. and 7 of the drawings.

A conducting arm 12 is connected to the shaft 6 so as to permit theshaft to readily rotate without swinging the arm 12, and this ari'n '12is secured in an insulating bracket 13 as illustrated clearly in Fig.41, the lower end of the arm being electrically connected to theconducting wire or other suitable cable 14 passing through the lower endof the casing 1. A contactarm or finger 15 is fixedly secured to theinner end of the shaft 6 and is adapted to rotate with the shaft 6 asthe thermostatic member10 expands under the increase of temperature. Itshould be understood that as the thermostatic member 10 is acted upon bythe different degrees of temperature that this spring will cause theshaft 6 to rotate due to the lineal expansion and contraction of thespring.

An'adjusting contact plate 16 is journaled in therear plate 17 of thecasing 1 and this plate fits snugly against the plate 17 as clearlyillustrated in Figs. 4.- and 5 of the drawings. A contact strip 18 issecured near the outer edge of this plate or disk 16 as is clearlyillustrated by Fig. 5 and this strip 18 is adapted to be engaged by thecon- Specification of Letters Patent. I Patentedsept. 3, 1918.

. static member 10 supported within the v The casing upon the topandbottom thereof, theftop eye I fitting over an arm 26 and the bottom eyethe strip 18. An operating arm 23 is keyed to the sleeve 21 and maybeswungso as to cause the disk 16 to be rotated to bringthe contactstrip 18, attached to disk 16 as aforesaid, in the desired position tosound a signal oralarm at a predetermined degree of temperature. meral2% is formed upon the'rear face of the casi'ng 1 so as to permit theoperator to readily set the indicator or contact device for the desireddegree.

1 is provided with an eye 25 fittingoveran arm 27. The top arm 26 isprovided with an upturned end 28 and a seal '29 is adapted to passthrough theouter end of the arm 27 so as to placement from the arms ZGand 27,

It, of course, should be understood that the circuit closing mechanismdescribed and llustrated may be placed in any deslred. or conrenientposition and that any suitable or convenient alarm or signal maybeelectr cally connected thereto whereby this signal will be operated whenthe ten'lperature surrounding the circuit closer reaches a predetermineddegree.

A dial indicated by the nu hold the casing .1 against accidentalOldlllillltllOl'lZQd dis- For the purpose of convenience and illustration, a .plurality of indicators above shown. or illustrated may beemployed, wlnchmdicators are adapted to be placed upon each dwelling or;house in acertain' named locality for automatically electricallysoundingv an alarm 1n case of fire 1n any one of these dwellings.

An alarm box of any ordinary type is ;adapted to cooperate with theelectrical circuits above described, and a relay indicated by-ihenumeral 89 (Fig.11) is adapted to be placed 30 and 31 being connected tothe binding posts 10, formed upon the sounder for energizing theelectro-magnets 41, whereby armatureiZ will be actuated. The armature 42carries a vertically-extending finger 43 (Fig. 11) which finger 43carries, at its within said alarm box; the wires upper end, a contactfork 44 (see Fig. 12),

which contact fork ii has a ,conta ct wire 45 stretching between thefork ends of the member A rertically-extending standard 17 is.,1noi11itecl upon the base of the sounder-mom her. and carries acontact finger 428, which is electrically connected to wire as, and wireCopies of this patent may be iibtained f o'r 4:9, as well as wire 4-6 isadapted to be e1ectrically. connected to a general fire station or othergeneral alarm.

;, What is laimed is:

1. An automatic alarm of the class described comprising a casing, ashaft supported within said casing, an indicating dial, a hand carriedby said shaft and adapted to indicate the degree of temperature uponsaid dial,- a thermostatcarried by said shaft, acontact arm connected tosaid shaft, an electric circuit electrically connected to saidcontact-arm, an adjustable electrical contact mounted within saidthermostat, said ad justable electrical contact comprising a diskjournaled' upon said casing, an arm for facilitating the rotation ofsaid disk, a con tact strip carried near the outer periphery of saiddisk and adapted to be -engagedby saidjc'ontact arm for closing acircuit'therethrough.

2. An auton'iatic alarm of the class described comprising a casing, ashaft supported within said casing, an indicating dial, ahand carried bysaid shaft and adapted to indicate the degree of temperature upon saiddial, a thermostat carried by said shaft,a contact arm connected to saidshaft, an adjustable electrical contact mounted within said thermostat,said adjustable electrical contact comprising a disk journaled upon saidcasing, 'n arm for tacilitating'the rotation of said disk, a contactstripcarried near the outer periphery of said'disk and adapted to beengaged by said contact arm for'closing a circuit therethrough, saidcontact strip provided with a stop knob at one end thereof.

3. An automatic firealarm of the class described comprising a casing, acontact arm, means for controlling the rotation of said contact arm, asecond contact means comprising a disk, a contact strip carried by saiddisk and adapted to be engaged by said contact arm, an. indicator handcooperating with said contact arm, a dial for said indicating hand, asecond dial upon the rear face of said casing, an arm connected to saidcontact disk and adapted to permit said contact strip to, be set forcontact with said contact 411 at a predetermined degree.

In testimony whereof I hereunto afiix my signature.

" Monms nnms MONTECINO.

five cents mil, by addressing the Ccimmisioner-dfPatcnn, washingtbml).0. I

